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OTHER CONTROLS CF5001 Ver.1.0 Sep. 2003
2-70
II UNIT EXPLANATION
15.2 Parts that operate only when the power switch is turned on
15.2.1 Parts that operate when the reset switch is turned on
When the reset switch (SW1) turns on, AC power is supplied to the DC power unit /1 (DCPS1), AC drive
board (ACDB) and the DC power unit /4: optional (DCPS4).
As a result, DCPS1 supplies 5 VDC to the overall control board (OACB) to monitor it with the main switch
(SW2).
The ACDB turns ON the HTR relay (RL3) in the board and provides 24 VAC to each heater via the trans-
former/main body (TRNS1) and the transformer/LCT (TRNS2).
15.2.2 Parts that operate when the main switch is turned on
When the main switch (SW2) is turned on, the overall control board (OACB) detects this condition and
sends a control signal to the DC power unit /1 (DCPS1) and the AC drive board (ACDB).
As a result, DCPS1 supplies 3.5 VDC, 5 VDC, 12 VDC and 24 VDC to all the boards and optional devices.
The ACDB turns ON the HTR relay (RL3) in the board and provides 24 VAC to each heater via the trans-
former/main body (TRNS1) and the transformer/LCT (TRNS2).
8050ma2039
SW1
SW2
5VDC
5VDC
24VDC
REMOTE
5VDC
3.3VDC
5VDC
12VDC
5VDC
12VDC
24VDC
5VDC
12VDC
DCPS1
ACDB
RL2
RL3
RL1
OACB
PRCB
TSDB
CVDB
DCPS2
HTR1,2
TRNS1
TRNS2
Fixing unit
DF-319
(OPTION)
DCPS4
(OPTION)
FS-115/215
(OPTION)
LT-211
(OPTION)
IPB
OB1